ComEd Reconductor Project
Willow Springs, IL

Replacement of 9.5 miles of 2156 ACSR conductor and 3/6 Alumoweld shield wire with 1033 ACSS TW double bundle and 7/8 Alumoweld shield wire. In addition, MJE installed one new steel pole and removed one existing lattice structure. Construction included installing wire over two major highways and two state routes with live traffic, contending with an extremely busy railroad running parallel to the transmission line, and replacing the wire while the line remained energized. Energized services used the Quanta Services’ LineMaster TM robotic arm. This unique, specialized technology enables linemen to safely reconductor, rebuild, replace, and add lines and equipment while keeping the system in service. This reconductor project used the robotic arm to successfully maneuver around an energized 34.5 kV underbuild and an energized 345 kV parallel circuit.